AREA CODE 720
Area codes 303, 720 and 983 are telephone area codes in the North American Numbering Plan for the north-central portion of the U.S. state of Colorado. The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Aurora, and Castle Rock. Area code 303 is the original area code, while area codes 720 and 983 were added (1998, 2022 respectively) to form an overlay plan for the area, meaning that the same geographic service area is served by all area codes and that ten-digit dialing is required for all calls made within the service area.
History
Area code 303 was one of the original North American area codes of 1947, and originally served the entire state of Colorado. It remained the state's sole area code for 40 years. Colorado's explosive growth in the second half of the 20th century, particularly in the Denver/Boulder area, made it a certainty that Colorado would need another area code. An impending number shortage in the late 1980s meant this split could no longer be staved off.
On March 5, 1988, southeastern Colorado, including Colorado Springs and Pueblo, was divided from the statewide area and received area code 719. Further demand for numbers led to another split: The northeastern and western portions of area code 303, including Fort Collins, Grand Junction, Vail and Aspen, were separated on April 2, 1995, and became area code 970. This split reduced 303 to the Denver-Boulder area.With the 1995 split, 303 was the only Colorado area code that did not border another state.
Although the 1995 split was intended as a long-term solution, the area continued to experience sharp growth so that within two years, further relief was necessary. The Front Range area is home not only to most of Colorado's landlines, but also to most of the state's cell phones, fax machines, and pagers. On September 1, 1998, area code 720 was instituted in the 303 service area to create an overlay.In 2020, the North American Numbering Plan Administrator estimated that the Denver metropolitan area would reach numbering exhaustion by 2023.
Accordingly, the Colorado Public Utilities Commission approved on May 21, 2021, an additional area code for the all-services distributed overlay of NPA 303/720.
In early 2022, Area code 983 is in the network preparation stage, with first office code assignments scheduled not before June 17, 2022. In addition, no central office code in 983 may be installed before the complete exhaustion of the existing area codes.The addition results in 23.8 million numbers being assigned to an area of about 3.5 million people.
Location, time zone and map of the 720 area code
Local time
Time difference to GMT/UTC
| Standard time: | UTC/GMT -7:00 hours |
|---|---|
| Daylight saving time: | +1:00 hour |
| Current time zone offset: | UTC/GMT -6:00 hours |
| Time zone abbreviation: | MDT |
Daylight Saving Time 2022 (Summer Time)
DST ends on Sunday 06 November 2022, 02:00
Time zone
MDT - Mountain Daylight Time when daylight saving time is being observed (from mid-March to early November)
Location
Major cities and communities served by area code 720
- Denver
- Aurora
- Thornton
- Westminster
- Commerce City
- Northglenn
- Brighton
- Federal Heights
- Strasburg
- Lakewood
- Arvada
- Wheat Ridge
- Golden
- Evergreen
- Boulder
- Longmont
- Lafayette
- Erie
- Louisville
- Superior
- Broomfield
- Castle Rock
- Parker
- Littleton
- Englewood
- Greenwood Village
- Cherry Hills Village
- Sheridan
- Deer Trail
- Frederick
- Fort Lupton
- Hudson
- Keenesburg
- Georgetown
- Twin Lakes
Get a 720 area code phone number in Denver
Denver, the capital city of Colorado, is one of the best destinations in the US for tourism and business activities. Located one mile above sea level, it is nicknamed the Mile High City and famed for its scenic beauty, outdoor activities, tourist attractions, and business opportunities.Due to its location at the foot of the mineral-rich Rocky Mountains, Denver was once known as a mining town.
Over the past few decades, the city has diversified its economy, creating numerous opportunities across various sectors. Today, it is ranked as a Beta City and supports several growing sectors including energy, telecommunications, technology, financial services, and healthcare.
All these factors make Denver a favorite with business owners, and expanding your business to the city is now easier than ever with Ringover’s virtual phone numbers with area code 720. These local numbers allow you to conduct business in Denver and its surrounding areas from any corner of the world.
Why choose a 720 area code for your business?
Get a Denver phone number with a 720 area code to display your local presence in the area of several millions of people. With this number you can increase your access to over 730,000 people residing in Denver city. As 720 is also the area code for many nearby cities including Aurora, Lakewood, Arvada, Thornton, Westminster, Boulder, etc., you can also enjoy access to several other millions. This is a powerful area code since a fairly large number of Colorado’s population lives in the 720 area.
Easily setup your Virtual Company in Denver
Setting up your business in Denver will allow you to tap into the city’s growing economy. However, this doesn’t mean that you need to physically move to the city or look for an office space. Instead, you can obtain a Denver number with area code 720 from Rover and set up a virtual company. Besides cutting costs, it will let you communicate with your potential customers in Denver and nearby cities.
Improve cold calling campaign results by using a 720 number
Telemarketing is a powerful tool in your sales arsenal, especially when you are looking to connect with new customers and generate potential leads. To make your cold calling campaigns in Denver more effective, it is imperative that you have a local business number with area code 720. It will help optimize your efforts, promote your services and products, and encourage more customers to pick up calls.
About Denver
You’re never at a loss for things to do in Denver, Boulder, and the surrounding cities that make up north-central Colorado. In fact, the 720 area code is bursting with fun activities, sprawling sandstone cliffs, and cultural sights to see. From Denver, the 720 area code extends outwards, reaching such iconic spots as the Red Rocks Park & Amphitheater, Dinosaur Ridge, and the Buffalo Bill Museum. Want to hop on over to Boulder? The 720 area code covers that area, too, From Boulder, branch out to explore the great outdoors, visiting Bear Peak, El Dorado Canyon State Park, and the iconic Flatirons. Be sure not to miss some of the 720 area code’s hottest spots, the ultra-modern and architecturally impressive Denver Art Museum and the Denver Botanic Gardens.Areas Served
As an enclave area code, the 720 area code serves cities located in the northern part of central Colorado. This means that it covers the well-known cities of Denver, Aurora, Westminster, Lakewood, and Boulder. Because the 720 area code is an overlay for the 303 area code, the former is more present in the counties of Arapahoe, Adams, Jefferson, and Boulder as opposed to Denver County.
WHERE IS THE 720 AREA CODE?
TOP CITIES IN THE (720) AREA CODE
Area Code (720) Prefixes
List of ZIP Codes in Area Code 720
List of Counties in Area Code 720
| Adams County |
| Arapahoe County |
| Boulder County |
| Broomfield County |
| Clear Creek County |
| Denver County |
| Douglas County |
| Gilpin County |
| Jefferson County |
...
Time difference to GMT/UTC.
| Standard time: | UTC/GMT -7:00 hours |
|---|---|
| Current time zone offset: | UTC/GMT -6:00 hours |
| Time zone abbreviation: | MDT |
Area code 720 is located in central Colorado and covers Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, and Centennial. It is an overlay for area code 303 and serves the same area.
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